AD7822BNZ

Semiconductors - ICs

> Data & Signal Conversion

> Analog-to-Digital Converters - ADC

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Series Information for AD7822BNZ - Analog Devices

Features

  • feature
    8-bit half-flash ADC with 420 ns conversion time One, four, and eight single-ended analog input channels Available with input offset adjust On-chip track-and-hold SNR performance given for input frequencies up to 10 MHz On-chip reference (2.5 V) Automatic power-down at the end of conversion Wide operating supply range 3 V u00b1 10% and 5 V u00b1 10% Input ranges 0 V to 2 V p-p, VDD = 3 V u00b1 10% 0 V to 2.5 V p-p, VDD = 5 V u00b1 10% Flexible parallel interface with EOC pulse to allow standalone operation

Description

IC 8BIT ADC 7822 DIP20

The AD7822/AD7825/AD7829 are high speed, 1-, 4-, and 8-channel, microprocessor-compatible, 8-bit analog-to-digital converters with a maximum throughput of 2 MSPS. The AD7822/ AD7825/AD7829 contain an on-chip reference of 2.5 V (2% tolerance); a track-and-hold amplifier; a 420 ns, 8-bit half- flash ADC; and a high speed parallel interface. The converters can operate from a single 3 V ± 10% and 5 V ± 10% supply. The AD7822/AD7825/AD7829 combine the convert start and power-down functions at one pin, that is, the CONVST pin. This allows a unique automatic power-down at the end of a conversion to be implemented. The logic level on the CONVST pin is sampled after the end of a conversion when an EOC (end of conversion) signal goes high. If it is logic low at that point, the ADC is powered down. The AD7822 and AD7825 also have a separate power-down pin (see the Operating Modes section). The parallel interface is designed to allow easy interfacing to microprocessors and DSPs. Using only address decoding logic, the parts are easily mapped into the microprocessor address space. The EOC pulse allows the ADCs to be used in a stand- alone manner (see the Parallel Interface section.)

Specifications

Resolution (Bits):
8bit
Sampling Rate:
2MSPS
Input Channel Type:
Single Ended
Data Interface:
Parallel
Supply Voltage Type:
-
Supply Voltage Min:
2.7V
Supply Voltage Max:
5.5V
ADC / DAC Case Style:
DIP
No. of Pins:
20Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
Single 8-Bit Pipelined ADCs
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (07-Jul-2017)
A/D / D/A Features:
CMOS Internal Reference Parallel O/P Track and Hold 3V/5V FLASH ADC
Base Number:
7822
Conversion Time:
0.42µs
IC Case Style:
DIP
IC Generic Number:
7822
Linearity Error:
0.75%
Linearity Error ADC / DAC +:
0.75LSB
Linearity Error ADC / DAC -:
0.75LSB
Logic Function Number:
7822
No. of Bits:
8bit
No. of Channels:
8Channels
Operating Temperature Range:
-40°C to +85°C
Power Dissipation Ptot Max:
450MW
Supply Current:
8mA
Supply Voltage Range - Analogue:
2.7V to 3.3V 4.5V to 5.5V

Alternate Descriptions

RS Components
ADC Single Semiflash 8-Bit Parallel
Newark Electronics
Analogue to Digital Converter, 8 bit, 2 MSPS, 2.7 V, 5.5 V, DIP RoHS Compliant: Yes
Richardson RFPD
CONVERTER - ADC
RS Components UK
ADC Single Semiflash 8-Bit Parallel
RS Components DE
8-Bit-Bit ADC AD7822BNZ Single Ended Parallel, PDIP 20-Pin 1 Montage-Typ : Durchsteckmontage Abtastrate : 2000ksps Architektur : Semi Flash Versorgungsspannung einzeln typ. : 3, 5 V Integrale Nichtlinearität : ±0.75LSB Abmessungen : 26.16 x 6.35 x 3.3mm, Analog Devices
RS Components HK
ADC Single Semiflash 8-Bit Parallel
RS Components JP
半導体,信号変換,ADC,8Bit
RS Components FR
CAN simple semi-flash 8bits parallèle
RS Components CN
ADC Single Semiflash 8-Bit Parallel
RS Components ES
ADC Single Semiflash 8-Bit Parallel
RS Components NL
ADC Single Semiflash 8-Bit Parallel
RS Components NO
ADC Single Semiflash 8-Bit Parallel
RS Components US
ADC Single Semiflash 8-Bit Parallel
RS Components SG
ADC Single Semiflash 8-Bit Parallel
RS Components TW
ADC Single Semiflash 8-Bit Parallel